:root {
      --page-39bet12-primary-color: #f7b32b; /* Vàng cam */
      --page-39bet12-secondary-color: #333; /* Đen xám */
      --page-39bet12-accent-color: #e74c3c; /* Đỏ */
      --page-39bet12-background-light: #f8f8f8;
      --page-39bet12-background-dark: #2c3e50; /* Xanh đậm */
      --page-39bet12-text-color-light: #333;
      --page-39bet12-text-color-dark: #fff;
    }

    .page-39bet12 {
      font-family: 'Arial', sans-serif;
      line-height: 1.6;
      color: var(--page-39bet12-text-color-light);
      background-color: var(--page-39bet12-background-light);
      padding: 0;
      margin: 0;
      overflow-x: hidden;
    }

    .page-39bet12__container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 20px;
      box-sizing: border-box;
    }

    .page-39bet12__section {
      padding: 40px 20px;
      margin-bottom: 20px;
      background-color: #fff;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    }

    .page-39bet12__section--dark {
      background-color: var(--page-39bet12-background-dark);
      color: var(--page-39bet12-text-color-dark);
    }

    .page-39bet12__hero-section {
      position: relative;
      width: 100%;
      min-height: 400px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: #fff;
      padding-top: 10px; /* Fixed header spacing for desktop */
      box-sizing: border-box;
      overflow: hidden;
    }

    .page-39bet12__hero-image {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      z-index: 1;
      max-width: 100%; /* Important for responsiveness */
      height: auto; /* Important for responsiveness */
    }

    .page-39bet12__hero-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(0, 0, 0, 0.6);
      z-index: 2;
    }

    .page-39bet12__hero-content {
      position: relative;
      z-index: 3;
      padding: 20px;
      max-width: 800px;
    }

    .page-39bet12__hero-title {
      font-size: 2.8em;
      margin-bottom: 15px;
      color: var(--page-39bet12-primary-color);
      text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
      line-height: 1.2;
    }

    .page-39bet12__hero-description {
      font-size: 1.2em;
      margin-bottom: 30px;
      color: #eee;
    }

    .page-39bet12__button {
      display: inline-block;
      background-color: var(--page-39bet12-primary-color);
      color: var(--page-39bet12-text-color-dark);
      padding: 15px 30px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1.1em;
      transition: background-color 0.3s ease, transform 0.3s ease;
      border: none;
      cursor: pointer;
    }

    .page-39bet12__button:hover {
      background-color: #e0a221;
      transform: translateY(-2px);
    }

    .page-39bet12__floating-button {
      position: fixed;
      bottom: 20px;
      left: 50%;
      transform: translateX(-50%);
      background-color: var(--page-39bet12-accent-color);
      color: var(--page-39bet12-text-color-dark);
      padding: 12px 25px;
      border-radius: 50px;
      text-decoration: none;
      font-weight: bold;
      font-size: 1em;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
      z-index: 1000;
      display: flex;
      align-items: center;
      gap: 10px;
      transition: background-color 0.3s ease, transform 0.3s ease;
    }

    .page-39bet12__floating-button:hover {
      background-color: #c0392b;
      transform: translateX(-50%) translateY(-2px);
    }

    .page-39bet12__floating-button::before {
      content: '🎁';
      font-size: 1.2em;
    }

    .page-39bet12__title {
      font-size: 2.2em;
      color: var(--page-39bet12-secondary-color);
      text-align: center;
      margin-bottom: 30px;
      position: relative;
    }

    .page-39bet12__title--dark {
      color: var(--page-39bet12-primary-color);
    }

    .page-39bet12__subtitle {
      font-size: 1.6em;
      color: var(--page-39bet12-primary-color);
      margin-top: 30px;
      margin-bottom: 15px;
    }

    .page-39bet12__text {
      font-size: 1em;
      margin-bottom: 15px;
      text-align: justify;
    }

    .page-39bet12__grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 25px;
      margin-top: 30px;
    }

    .page-39bet12__card {
      background-color: var(--page-39bet12-background-light);
      border-radius: 8px;
      box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
      overflow: hidden;
      text-align: center;
      transition: transform 0.3s ease;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      height: 100%;
    }

    .page-39bet12__card:hover {
      transform: translateY(-5px);
    }

    .page-39bet12__card-image-wrapper {
      width: 100%;
      height: 200px;
      overflow: hidden;
      box-sizing: border-box; /* Ensure padding/border is included in width/height */
    }

    .page-39bet12__card-image {
      width: 100%;
      height: 100%;
      object-fit: cover;
      max-width: 100%; /* Important for responsiveness */
      height: auto; /* Important for responsiveness */
    }

    .page-39bet12__card-content {
      padding: 20px;
    }

    .page-39bet12__card-title {
      font-size: 1.4em;
      color: var(--page-39bet12-secondary-color);
      margin-bottom: 10px;
    }

    .page-39bet12__card-description {
      font-size: 0.95em;
      color: #555;
    }

    .page-39bet12__list {
      list-style: none;
      padding: 0;
      margin-top: 20px;
    }

    .page-39bet12__list-item {
      display: flex;
      align-items: flex-start;
      margin-bottom: 15px;
      font-size: 1.1em;
      color: var(--page-39bet12-text-color-light);
    }

    .page-39bet12__list-item::before {
      content: '✔️';
      margin-right: 10px;
      color: var(--page-39bet12-primary-color);
      font-weight: bold;
      font-size: 1.2em;
    }

    .page-39bet12__step-item {
      display: flex;
      align-items: center;
      margin-bottom: 20px;
      background-color: #f0f0f0;
      border-left: 5px solid var(--page-39bet12-primary-color);
      padding: 15px;
      border-radius: 5px;
    }

    .page-39bet12__step-number {
      font-size: 1.8em;
      font-weight: bold;
      color: var(--page-39bet12-primary-color);
      margin-right: 15px;
      flex-shrink: 0;
    }

    .page-39bet12__step-content {
      flex-grow: 1;
    }

    .page-39bet12__step-title {
      font-size: 1.2em;
      color: var(--page-39bet12-secondary-color);
      margin-bottom: 5px;
    }

    .page-39bet12__step-description {
      font-size: 0.95em;
      color: #555;
    }

    .page-39bet12__step-image-wrapper {
      width: 100%;
      max-width: 400px;
      margin-top: 15px;
      margin-bottom: 15px;
      overflow: hidden;
      box-sizing: border-box;
      border-radius: 8px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }

    .page-39bet12__step-image {
      width: 100%;
      height: auto;
      display: block;
      max-width: 100%; /* Important for responsiveness */
      height: auto; /* Important for responsiveness */
    }

    .page-39bet12__faq-section {
      background-color: var(--page-39bet12-background-light);
      padding: 40px 20px;
      border-radius: 8px;
      box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
      margin-bottom: 20px;
    }

    .page-39bet12__faq-item {
      margin-bottom: 10px;
      border: 1px solid #ddd;
      border-radius: 5px;
      overflow: hidden;
    }

    .page-39bet12__faq-question {
      background-color: #f0f0f0;
      padding: 15px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      cursor: pointer;
      user-select: none;
      transition: background-color 0.3s ease;
      color: var(--page-39bet12-secondary-color);
    }

    .page-39bet12__faq-question:hover {
      background-color: #e0e0e0;
    }

    .page-39bet12__faq-question h3 {
      margin: 0;
      font-size: 1.1em;
      pointer-events: none; /* Prevent h3 from blocking click on parent */
    }

    .page-39bet12__faq-toggle {
      font-size: 1.5em;
      font-weight: bold;
      color: var(--page-39bet12-primary-color);
      pointer-events: none; /* Prevent toggle icon from blocking click on parent */
      transition: transform 0.3s ease;
    }

    .page-39bet12__faq-item.active .page-39bet12__faq-toggle {
      transform: rotate(45deg); /* Change '+' to 'x' or '-' */
    }

    .page-39bet12__faq-answer {
      background-color: #fff;
      max-height: 0;
      overflow: hidden;
      padding: 0 15px;
      opacity: 0;
      transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
      color: #555;
      font-size: 0.95em;
    }

    .page-39bet12__faq-item.active .page-39bet12__faq-answer {
      max-height: 2000px !important; /* Sufficiently large to show all content */
      padding: 20px 15px !important;
      opacity: 1;
    }

    /* Responsive Design */
    @media (max-width: 768px) {
      .page-39bet12__hero-section {
        min-height: 300px;
        padding-top: 10px !important; /* Fixed header spacing for mobile */
      }

      .page-39bet12__hero-title {
        font-size: 2em;
      }

      .page-39bet12__hero-description {
        font-size: 1em;
      }

      .page-39bet12__title {
        font-size: 1.8em;
      }

      .page-39bet12__subtitle {
        font-size: 1.4em;
      }

      .page-39bet12__text {
        font-size: 0.95em;
      }

      .page-39bet12__button {
        padding: 12px 25px;
        font-size: 1em;
      }

      .page-39bet12__floating-button {
        width: calc(100% - 40px);
        max-width: 350px;
        font-size: 0.9em;
        padding: 10px 15px;
      }

      .page-39bet12__grid {
        grid-template-columns: 1fr;
      }

      .page-39bet12__card-image-wrapper,
      .page-39bet12__step-image-wrapper {
        width: 100% !important;
        max-width: 100% !important;
        overflow: hidden !important;
        box-sizing: border-box !important;
      }

      .page-39bet12__card-image,
      .page-39bet12__step-image {
        max-width: 100% !important;
        height: auto !important;
      }

      .page-39bet12__list-item {
        font-size: 1em;
      }

      .page-39bet12__step-item {
        flex-direction: column;
        align-items: flex-start;
      }

      .page-39bet12__step-number {
        margin-bottom: 10px;
      }

      .page-39bet12__faq-question h3 {
        font-size: 1em;
      }
    }